Internal-explosive engine



R. R. DIETRICH.

INTERNAL EXPLOSIVE ENGINE. APPucATIoN FILED Aus.3. 1( 19.

Patented May 18, 1920.

JAM

BICI-IARD R. DIETRICH, OF BALTIMORE, MARYLAND.

INTERNAL-EXPLOSIVE ENGINE.

Specification of Letters Patent.

Patented May 1s, 1920.

Application filed August 3, 1916. Serial No..112,891.

' a citizen of the United States, residing at panying drawing wherein,-

Baltimore city, in the State of Maryland,

have invented certain new and useful Improvements in Internal-Explosive Engines, of which the following is a specification.

This invention relates to improvements in internal explosive engines and has for its object to provide novel and improved means for transmitting power from the piston or pistons to the crank or cranks.

In carrying out the invention I may'readily vary the number of pistons and cylinders employed, but in the present instance I have diagrammatically shown two pistons and cylinders, and for' the purpose of simplification, have omitted to illustrate the ad-f mission and exhaust parts and valves, and the ignition devices, which can obviously be supplied by anyone skilled in the art.

The invention is illustrated in the accom- Figure 1 shows two cylinders, a crank case and crank and also shows two c Knnecting rods both of which connect with a crank-y through a link, and A Fig.` 2 illustrates in a diagrammatic way the positions of the piston and link during a revolution.

Referring to the drawing the numeral 10, designates a casing, the shape of which is immaterial, but is such as to inclose the crank and the moving parts that connect the crank with the pistons. In the present instance two cylinders 11 and 12, respectively are shown at opposite sides of the casing,- one cylinder havinga piston 13, and the other a-piston 14. The crank-shaft 15, enters the casing, in the present instance, bet\veenthe inner ends of the two cylinders and said shaft carries a crank 16.

In the structure shown the piston 13, has a connecting rod 17, the outer end 18, of which is pivotally connected to said piston and the inner end 19,. of which is pivotally attached to the free end 20, of an oscillating rod 21. This oscillating rod 21, in the present instance, has a lower end 22, which is` having an outer end pivoted to a and the inner end 26, of which rod is pivotally connected to the upper free end 20, of said oscillating rod.

It will thus be seen that in the present form both connecting rods 17 and 24, have their inner ends connected to the free end 20, of the oscillating rod, and that when one piston makes an inward stroke the other piston will make'an outward stroke and thus during the expansion or power stroke of each piston the power exerted thereby will bedapplied to the free end of the oscillating ro A link 27, connects the free end 20, of the oscillating bar 21, with the swinging end or wrist-pin 28, of the crank 16, so that as the said bar-end swings backor forth it causes a vforward push or a backward pull on the link 28, which movement is imparted to the crank whereby to swing the latter through a circular path.`

It will thus be understood that in accordance withthis invention there is interposed between the connecting rod and the crank, a link, whose movement is such as to apply a thrust of the connecting rod on the crank. By referring to Fig. 2, of the drawing it will be noted that four positions A-B-C and D of the' crank and link are shown, and by reference to Fig.4 1, threepositions A-B and C of the piston in the cylinder are shown. It will be understood that when the link is at position A, the end of the piston will be at line A in Fig. 1; that when the link is at B, the end of the piston will be at line B in said Fig. 1, and when the link is at position C, the piston will be at line C in said Fig. 1.

By comparing the positions of the link shown in Fig. 2,` with the positions of the piston shown in Fig. 1, it will be noted that the link has full power when the piston is under full compression and that practically the same pressure is applied to the crank through the link, during the entire revolution of the engine because the position of the link with respect to the connecting rods changes as the pressure in the cylinder decreases.

Having described my invention, I claim.`

1. The combination with a plurality of cylinders, of a piston in each cylinder; a connecting-rod for each piston and each rod piston and the inner ends of the rods be' pivoted on the Same axis and thereby mec y ani'callyv with the crank and the other end of saidl link being pivotally connected with the two pioted-together ends of the two connecting ro s.

2. The combination with a crank-case, of a plurality of cylinders extending from the crank-case; a piston in each cylinder; a conmeeting-rod for each piston each connectingrod having an outer end that is pivoted to a piston and the inner ends of the connecting rods being pivotally Connected on a common axis; an oscillating rod having one end pivotally connected to the pivoted-together ends of a plurality of connecting-rods and said oscillating rod extending to one side of the path of movement of the connecting 2C rods and having its remote end pivoted; a crank having its axis on the opposite side of the path of movement of said connecting rods and between the inner ends of the cylinders, and a link having one end pivotally connected on the axis of the pivoted-together connecting and oscillating rods and its other end pivoted to the crank and said link being located in a plane at the side of one of the said connecting-rods.

In testimony whereof I aiiix my signature in the presence of two witnesses.

RICHARD R. DIETRICH. y Witnesses:

RoBT. R. EMERSON, RoB'r. H. LA JKFORD. 

